mirror of https://github.com/home-assistant/core
84 lines
2.6 KiB
Python
84 lines
2.6 KiB
Python
"""Button platform for La Marzocco espresso machines."""
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import asyncio
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from collections.abc import Callable, Coroutine
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from dataclasses import dataclass
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from typing import Any
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from pylamarzocco.exceptions import RequestNotSuccessful
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from homeassistant.components.button import ButtonEntity, ButtonEntityDescription
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from homeassistant.core import HomeAssistant
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from homeassistant.exceptions import HomeAssistantError
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from .const import DOMAIN
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from .coordinator import LaMarzoccoConfigEntry, LaMarzoccoUpdateCoordinator
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from .entity import LaMarzoccoEntity, LaMarzoccoEntityDescription
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BACKFLUSH_ENABLED_DURATION = 15
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@dataclass(frozen=True, kw_only=True)
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class LaMarzoccoButtonEntityDescription(
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LaMarzoccoEntityDescription,
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ButtonEntityDescription,
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):
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"""Description of a La Marzocco button."""
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press_fn: Callable[[LaMarzoccoUpdateCoordinator], Coroutine[Any, Any, None]]
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async def async_backflush_and_update(coordinator: LaMarzoccoUpdateCoordinator) -> None:
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"""Press backflush button."""
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await coordinator.device.start_backflush()
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# lib will set state optimistically
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coordinator.async_set_updated_data(None)
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# backflush is enabled for 15 seconds
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# then turns off automatically
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await asyncio.sleep(BACKFLUSH_ENABLED_DURATION + 1)
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await coordinator.async_request_refresh()
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ENTITIES: tuple[LaMarzoccoButtonEntityDescription, ...] = (
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LaMarzoccoButtonEntityDescription(
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key="start_backflush",
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translation_key="start_backflush",
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press_fn=async_backflush_and_update,
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),
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)
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async def async_setup_entry(
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hass: HomeAssistant,
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entry: LaMarzoccoConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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"""Set up button entities."""
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coordinator = entry.runtime_data
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async_add_entities(
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LaMarzoccoButtonEntity(coordinator, description)
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for description in ENTITIES
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if description.supported_fn(coordinator)
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)
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class LaMarzoccoButtonEntity(LaMarzoccoEntity, ButtonEntity):
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"""La Marzocco Button Entity."""
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entity_description: LaMarzoccoButtonEntityDescription
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async def async_press(self) -> None:
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"""Press button."""
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try:
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await self.entity_description.press_fn(self.coordinator)
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except RequestNotSuccessful as exc:
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raise HomeAssistantError(
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translation_domain=DOMAIN,
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translation_key="button_error",
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translation_placeholders={
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"key": self.entity_description.key,
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},
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) from exc
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